Zakuro (Ninja Scroll) can remotely detonate the gunpowder she manipulates, even after implanting them into living beings, causing extremely powerful explosions.

Mr. 5 (One Piece) can cause any part of his body, as well as his secretions and breath, to explode, thanks to him eating the Bomu Bomu no Mi.

Gladius (One Piece) can cause any inorganic material he touches to rupture and explode with his Pamu Pamu no Mi.

Guila (The Seven Deadly Sins) can create explosions.

After being hit with weird sciencey-beams from a meteorite, Nostalgia Critic (Channel Awesome) was granted the power to create explosions at will, taking on the superhero name "Sparky-Sparky-Boom Man."

Aoi Fukasaku (Coppelion) generates an explosion that destroys an aircraft.

Using the Super Flare, Superman (DC Comics) releases all of the solar energy stored within his cells at once, creating a solar explosion powerful enough to incinerate everything within a quarter mile radius.

Segata Sanshiro (Sega) performs a judo throw that causes his opponent to explode twice upon hitting the ground.

Using Chaos Blast, Shadow the Hedgehog (Sonic the Hedgehog) unleashes a large explosion of Chaos energy.

Gor (The Brain from Planet Arous) could cause a whole city to explode just by thinking about it

Most of Rolan’s (Marchen Awakens Romance) ÄRMs cause explosions. He belongs to the high Chess Piece rank of Knight where he's the 5th strongest.

Orb's (Marchen Awakens Romance) Nature ÄRM, Explode, encases his enemy in a ball which then detonates.

Guardian ÄRM, Á Bao A Qu (Marchen Awakens Romance) has the power to imprison opponents in a ball and when its master, Alviss gives the order "burst up" Á Bao A Qu will detonate the ball along with whoever’s inside.

Zofis and Koko (Zatch Bell) are one of the 100 Mamodo teams fighting to become king. Zofis’ power is explosions.

Katsuki Bakugou (My Hero Academia) possesses the quirk "Explosion", allowing him to ignite the nitroglycerin-like sweat from his hands...

...creating explosions ranging from small, palm-sized to big enough to decimate a city block.

Tortunator (Pokémon) using "Shell Trap" to detonate his shell upon something make physical contact with it.